1.C(4)1C(10 -4)4 / C(10)5 = 60 / 252 = 0.2381
2.(C(10)5 - C(10 -4)5)/ C(10)5 =246 /252 = 0.9762
3.(C(4)1C(10 -4)4 + C(10 -4)5)/ C(10)5 = 66 /252 = 0.2619
1.C(4)1C(10 -4)4 / C(10)5 = 60 / 252 = 0.2381
2.(C(10)5 - C(10 -4)5)/ C(10)5 =246 /252 = 0.9762
3.(C(4)1C(10 -4)4 + C(10 -4)5)/ C(10)5 = 66 /252 = 0.2619